Alignment bow 05, angle measuring quadrant, spirit level quadrant, German, manufacturer F.L.SP.
Alignment bow 05, angle measuring quadrant, spirit level quadrant, German, manufacturer FL.SP. Total length 26 cm, weight 2.1 kg,
Material: brass, steel and nickel silver, reading 0 - 55 degrees, on the vernier 1/16 degree.
Established designation: "Alignment bow 05". Device no. E 27S X. Spirit level still originally filled.
Additional scales for the use of different types of projectile, scale labeled with grenade on the top, "terrain angle" stamped on the side. Also known with optical attachment as a forerunner of the panoramic telescope.
Technically and optically very sophisticated and very rare device.